Flashaholics, thanks for testing it out again. Was this 84c at 10th minute or shorter time? I think it is reasonable fan started later than first test since it is colder to start from.
I started measuring from about 6 mins, 81c to 84c over 3-4 mins etc, heat doesn’t go up that fast once the stepdown occurs. I don’t know if the fan is keeping it stable at 15,000 or the sheer flashlight size.
If we look at Matt’s video review that he tested at just 15000lm, temperature was still increasing after 20min where it reached 70c, also output was dropping gradually to about 11000lumens in the test, I think it’s mostly due to output drop and sheer size of mass, the fan does not help much.
By the way, do you feel obvious hot air flow during your test?
So they build a light that blinds you with the spill reflecting on the ground, and then they forget to research how you implement a fan..
The bit of airflow outward gets immediately sucked back in by the inlets, apparently…
Looks like Imalent successfully design a mini convection oven, in wrong product though .
That is why they went with the first Gen 70’s they take longer to COOK…
Ya, i think this one can really cook, 80+ degree celcius external temperature can really cook something. Wonder what would be the internal temperature.
So they build a light that blinds you with the spill reflecting on the ground, and then they forget to research how you implement a fan..
The bit of airflow outward gets immediately sucked back in by the inlets, apparently…
I was thinking this morning could it be the fan spinning too fast compared to prototype. Don’t know why Imalent engineers can accept this kind of active cooling with minimal airflow?
hm where does all those hundreds of watts heat go then? makes no sense…. If hot air just is trapped inside that light will not function well in the long run. That much heat must vent and go out and not stay trapped, its like a furnace in there..
Like i said there is a reason olight and now acebeam ditched the internal fans, i doubt imalent have made anything groundbreaking with that fan? it doesnt sound so atleast too me..
hm where does all those hundreds of watts heat go then? makes no sense…. If hot air just is trapped inside that light will not function well in the long run. That much heat must vent and go out and not stay trapped, its like a furnace in there..
Like i said there is a reason olight and now acebeam ditched the internal fans, i doubt imalent have made anything groundbreaking with that fan? it doesnt sound so atleast too me..
Heat can be transferred from one place to another by three methods: conduction in solids, convection of fluids (liquids or gases), and radiation through anything that will allow radiation to pass.
So now it has conduction from mcpcb to light head, and radiation from light head to surrounding, but not much convection due to ineffective fan design.
Basically all non-active cool flashlights don’t have much convection unless user blow an external fan on the flashlights. MS12 supposed to make use of convection to transfer heat away with air.
So now it has conduction from mcpcb to light head, and radiation from light head to surrounding, but not much convection due to ineffective fan design.
Right, all flashlights use convection (unless they are in a vacuum), but it’s relatively weak. Using a fan is called forced convection. It greatly speeds up or helps the heat transfer.
Even though other MS12 users show air entering one side and exiting the other, it’s not a straight forward flow. The fan style they are using just seems odd. I’ve never seen that style of fan used like this before. The only thing close was the FB1 below.
In fact, here are all the airflow patterns on the active cooled lights I know of.
The prototype Olight X9.
I’m guessing on this Microfire due to lack of data.
The protoype X70. It had 3 fans so it looked like it had 3 dividers using 120° of the diameter. So it had 3 inlets and 3 outlets.
The new version of the X70 has the external fan and “looks” like it has air blowing across the exterior.
I am still guessing on the MS12 design. Their fan style and layout is very odd. I’m guessing they are using a divider to get the air to go in one side and out the other, but it’s not working very well.
—
Texas Ace Lumen Tube and JoshK Sphere calibrated with Maukka lights
The fan style they are using just seems odd. I’ve never seen that style of fan used like this before.
Used in laptops a lot.
It’s a centrifugal fan. Picks up air in the centre and blows it out the outer perimeter.
It basically spins the air that’s in there and flings it outward.
Very effective.
Vacuum cleaners work that way too.
The fan style they are using just seems odd. I’ve never seen that style of fan used like this before.
Used in laptops a lot.
It’s a centrifugal fan. Picks up air in the centre and blows it out the outer perimeter.
It basically spins the air that’s in there and flings it outward.
Very effective.
Vacuum cleaners work that way too.
Unfortunately it doesn’t seem to work very well in the Imalent…
You misunderstood me. I’m familiar with all fan types, but centrifugal is not often seen inside flashlights. The FB1 uses a centrifugal, but it’s orientated differently.
—
Texas Ace Lumen Tube and JoshK Sphere calibrated with Maukka lights
Yes the type of fan in the middle of the light makes no sense to me, it doesnt seem like its magical just sucks the cold air from one side and throws out all the hot air on the other side, if it was that easy other light makers would have figured that out long before imalent, it doesnt take a rocket scientist to figure that out.
Would be interesting see the inside of the head if there are air channels or something to get the flow out somehow…
Imalent should be held responsible if this flashlight burn someone accidentally. To be king of lumen it must also take care of user safety. I can’t imagine those who has less flashlight knowledge paying full price and get themselves a dangerous tool. If buyers think MS12 gets too hot in such a short time and request return for refund, would Imalent accept return? Sport car that can accelerate very fast will also brake to still very fast, it’s safety that is utmost important.
I think Blippi at ASF got 71c for his heat test at the head, kinda in the middle of the 3 tests I did. I’d be interesting to see if that was from a full charge.
Bridgtec commented his fan was quiet which seems odd.
I’m not convinced, that Imalent MS12 can be really worth more than 400$. I saw video with turbo mode and saw the other videos with Professional Police Flashlight and I can write – this one can be much better than Imalent DX80, but not for this price.
Worth or value is all relative. If it’s not worth $400 to you that is fine. It is worth it to some people, but not others. This is just the way things are.
—
Texas Ace Lumen Tube and JoshK Sphere calibrated with Maukka lights
Yes, I know that is not flashlight for daily use and you can always put there some Swarovski crystal and sell it for 1000$. I just only wonder, who buy flashlight like this one.
Another great “budget” light!
I started measuring from about 6 mins, 81c to 84c over 3-4 mins etc, heat doesn’t go up that fast once the stepdown occurs. I don’t know if the fan is keeping it stable at 15,000 or the sheer flashlight size.
My 4K Lumen Whore Reviews (MS18, X70, MS12, DX80, X80-GT, X45vn etc) - http://www.youtube.com/c/FLASHAHOLIC_TV
If we look at Matt’s video review that he tested at just 15000lm, temperature was still increasing after 20min where it reached 70c, also output was dropping gradually to about 11000lumens in the test, I think it’s mostly due to output drop and sheer size of mass, the fan does not help much.
By the way, do you feel obvious hot air flow during your test?
I felt zero air enter or leave the light.
My 4K Lumen Whore Reviews (MS18, X70, MS12, DX80, X80-GT, X45vn etc) - http://www.youtube.com/c/FLASHAHOLIC_TV
That is why they went with the first Gen 70’s they take longer to COOK…
KB1428 “Live Life WOT”
So they build a light that blinds you with the spill reflecting on the ground, and then they forget to research how you implement a fan..
The bit of airflow outward gets immediately sucked back in by the inlets, apparently…
Ya, i think this one can really cook, 80+ degree celcius external temperature can really cook something. Wonder what would be the internal temperature.
I was thinking this morning could it be the fan spinning too fast compared to prototype. Don’t know why Imalent engineers can accept this kind of active cooling with minimal airflow?
The faster it spins, the more air displacement.
Maybe they forgot an air intake altogether…
hm where does all those hundreds of watts heat go then? makes no sense…. If hot air just is trapped inside that light will not function well in the long run. That much heat must vent and go out and not stay trapped, its like a furnace in there..
Like i said there is a reason olight and now acebeam ditched the internal fans, i doubt imalent have made anything groundbreaking with that fan? it doesnt sound so atleast too me..
...where Frugal meets with Flashlight!
つ ◕_◕ ༽つ
Heat can be transferred from one place to another by three methods: conduction in solids, convection of fluids (liquids or gases), and radiation through anything that will allow radiation to pass.
So now it has conduction from mcpcb to light head, and radiation from light head to surrounding, but not much convection due to ineffective fan design.
Basically all non-active cool flashlights don’t have much convection unless user blow an external fan on the flashlights. MS12 supposed to make use of convection to transfer heat away with air.
Right, all flashlights use convection (unless they are in a vacuum), but it’s relatively weak. Using a fan is called forced convection. It greatly speeds up or helps the heat transfer.
Even though other MS12 users show air entering one side and exiting the other, it’s not a straight forward flow. The fan style they are using just seems odd. I’ve never seen that style of fan used like this before. The only thing close was the FB1 below.
In fact, here are all the airflow patterns on the active cooled lights I know of.
The prototype Olight X9.
I’m guessing on this Microfire due to lack of data.
The protoype X70. It had 3 fans so it looked like it had 3 dividers using 120° of the diameter. So it had 3 inlets and 3 outlets.
The new version of the X70 has the external fan and “looks” like it has air blowing across the exterior.
I am still guessing on the MS12 design. Their fan style and layout is very odd. I’m guessing they are using a divider to get the air to go in one side and out the other, but it’s not working very well.
Texas Ace Lumen Tube and JoshK Sphere calibrated with Maukka lights
Click this to go to signature links. I'm still around, just not reading many new threads.
Used in laptops a lot.
It’s a centrifugal fan. Picks up air in the centre and blows it out the outer perimeter.
It basically spins the air that’s in there and flings it outward.
Very effective.
Vacuum cleaners work that way too.
You misunderstood me. I’m familiar with all fan types, but centrifugal is not often seen inside flashlights. The FB1 uses a centrifugal, but it’s orientated differently.
Texas Ace Lumen Tube and JoshK Sphere calibrated with Maukka lights
Click this to go to signature links. I'm still around, just not reading many new threads.
Yes the type of fan in the middle of the light makes no sense to me, it doesnt seem like its magical just sucks the cold air from one side and throws out all the hot air on the other side, if it was that easy other light makers would have figured that out long before imalent, it doesnt take a rocket scientist to figure that out.
Would be interesting see the inside of the head if there are air channels or something to get the flow out somehow…
...where Frugal meets with Flashlight!
つ ◕_◕ ༽つ
They have to call a aerodynamics expert to fix the problem.
Imalent should be held responsible if this flashlight burn someone accidentally. To be king of lumen it must also take care of user safety. I can’t imagine those who has less flashlight knowledge paying full price and get themselves a dangerous tool. If buyers think MS12 gets too hot in such a short time and request return for refund, would Imalent accept return? Sport car that can accelerate very fast will also brake to still very fast, it’s safety that is utmost important.
I think Blippi at ASF got 71c for his heat test at the head, kinda in the middle of the 3 tests I did. I’d be interesting to see if that was from a full charge.
Bridgtec commented his fan was quiet which seems odd.
My 4K Lumen Whore Reviews (MS18, X70, MS12, DX80, X80-GT, X45vn etc) - http://www.youtube.com/c/FLASHAHOLIC_TV
did he ever say something negative in his reviews?
I think the Fan design is not perfect
but before I post my conclusion I need to open the light to see if it's fixable or not.
the MS12 and R90C are 100% not toys and should handled with care!
all new deals are also posted here: deals.m4dm4x.com
if you do not find what you are looking for :
ask MARTIN@M4DM4X.COM - i will save you money!
What do you mean exactly?I ask because I’ll get a R90C.
I pass MS12 because I have the DX80 which is more than enough for me.
Are you calling Matt/Vestureofblood Blippi? Where does this name come from?
Texas Ace Lumen Tube and JoshK Sphere calibrated with Maukka lights
Click this to go to signature links. I'm still around, just not reading many new threads.
Not toys ??
Well, not children’s toys, that’s true.
He mentioned the MS12 needs a layer of polystyrene over it in the box to stop the lid denting.
My 4K Lumen Whore Reviews (MS18, X70, MS12, DX80, X80-GT, X45vn etc) - http://www.youtube.com/c/FLASHAHOLIC_TV
toys for big boys then.
...where Frugal meets with Flashlight!
つ ◕_◕ ༽つ
I’m not convinced, that Imalent MS12 can be really worth more than 400$. I saw video with turbo mode and saw the other videos with Professional Police Flashlight and I can write – this one can be much better than Imalent DX80, but not for this price.
Worth or value is all relative. If it’s not worth $400 to you that is fine. It is worth it to some people, but not others. This is just the way things are.
Texas Ace Lumen Tube and JoshK Sphere calibrated with Maukka lights
Click this to go to signature links. I'm still around, just not reading many new threads.
Yes, I know that is not flashlight for daily use and you can always put there some Swarovski crystal and sell it for 1000$. I just only wonder, who buy flashlight like this one.
Several people on BLF have bought them. I kind of see the appeal. It’s super bright and awesome.
It’s the little 18650 lights that people buy for $300 that make me scratch my head.
Texas Ace Lumen Tube and JoshK Sphere calibrated with Maukka lights
Click this to go to signature links. I'm still around, just not reading many new threads.
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